NOTE: Please refer next post AFTER this one. This post was written thinking Gary meant a 30 degree angle UP for the second half of the leg, not DOWN dropping to 30' off the ground. But it will be left here for archive info in case someone has this same situation in the future.
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G,
By changing the second half of the L from flat to a 30 degree angle will only change your vertical pattern components somewhat. It will now more closely resemble a full vertical more than a horizontal pattern.
It will now be even more dependent upon your ground system for performance.
The "capacity hat" is really a name for the horizontal length and has little effect on the resonant frequency. The resonant freq will probably creep up slightly, simply cuz there is less coupling/capacitance to ground now, but still does it's job of increasing the feedpoint impdeance.
I know plenty of guys on 160M over the years running FOUR ants like you have in a four square. They take a single tower, and pull out four wires from the top on a 45 degree angle, and feed them at the bottom in four square with a Com-Tek box, or whatever. Works fb and not too far off from standard verticals in a square in modeling.
Bottom line is that you are OK, but will be slightly piss weaker to the locals now that you're taken some more horiz component out. Don/KYV will be giving you some big reports, howver...
It will be a wash here in CT I expect cuz of the 350 mile distance on 160M.
BTW, I'm making my new 4X1 rig easily bandswitch-able to get up on 160M wid you in a month with the dipole at 190'. Big mawl, caw mawn. Looking forward to it and glad you put the effort in to get back on 160.
T